Past Meetings And Events

"DJ" djovida, KJ6DJ
Try fldigi

Fast Light Digital modem application (FLDigi) is a free and open-source program which allows an ordinary computer's sound card to be used as a simple two-way data modem. If you would like to try FLDigi, you can download and install the programs from You should also load FLMsg.exe and Flamp.exe. Introduction-to-NBEMS-ARRL

Rich Harrington, KN6FW
Radio Direction Finding or T-Humting

T-Hunting aka Fox Hunting has a long amateur radio history. Hunt participants use radio direction finding techniques to locate one or more radio transmitters hidden in a designated search area. Rich Harrington, KN6FW will be presenting some of the systems and techniques used in T-Hunting. There is an active local ham community that participates in T-Hunting. There will be a hunt the following day in Fremont sponsored rdf-sf ( and we're invited to participate with our new learned techniques. About Rich Harrington: First ham license WA6GJF about 1960. First class radio telephone license 1960. First transmitter hunt about 1962. US Navy 1966-1972 ECM operator (Transmitter hunting). Retired Pacific Bell communication engineer. Registered Professional Engineer with the state of California. Amateur radio operator KN6FW. Upgraded to extra when the code requirement went to 5 wpm. Hobby: Designing and using radio direction finding equipment

Bryce Lynch
Computer Security in the Shack

Do you have a computer in your shack storing your valuable logs and carefully configured software? The internet can be a dangerous place. Computer security is the protection of computer systems and the data stored on them. This presentation will introduce good computer security practices and how to incorporate them into your everyday routine. Computer Security in the Shack

Martin Rothfield
What's a RTL-SDR and why you need one

RTL-SDRs are ultra cheap software defined radios that runs on most platforms with a wealth of free software. If you have one bring it in with a laptop to try some software. An introduction to RTL-SDR

Jack Burris
Portable FT-8

Jack has been operating mobile a lot and has put together a minimal FT-8 rig in a backpack.

Listed Below
Open Mic Night - EBARC Lightning talks

Members turn to speak on various topic of interest

Sharon Primbsch, AA6XZ
Organizing a Mega VE Session

Recently, lots of Bay Area Volunteer Examiners have come together several times to help the UC Berkeley Electrical Engineering and Computer Science (EECS) department. The instructors are encouraging their students to (optionally) become licensed hams, so they can test what they build in class. She'll describe what it took to get (and keep) these "Mega-Sessions" going. All the participants are delighted to be helping in (Science, Technology, Engineering, and Math) STEM education, in addition to furthering the amateur radio hobby. Organizining a Mega VE Session

Dr. L. Paul Verhage
High Altitude Balloon Flight

We flew another HAB - Photos

Peter Hoffman, W6DEI
The Moxon Antenna

We will have a presentation on the Moxon Rectangle antenna. Invented by Les Moxon, G6XN, The Moxon is a stealthy gain antenna that's inexpensive and fun to build. It's a great Saturday antenna project, especially for new hams seeking their first gain antenna. The Moxon is especially attractive to hams who want to avoid purchasing more expensive towers and rotators and who desire a directional antenna. For their size, Moxons are high performance antennas that lend themselves well to the spirit of experimentation and easily be scaled for any band, HF to UHF.

Ken Fowler, KO6NO
Field Day 2018

We had a great Field Day - come join us next year!

Speaker: Gary Lauterbach, AD6FP
Earth-Moon-Earth (EME)

DXers thrill at a contact with an exotic and distant location like Heard Island or Turkmenistan, but you can hardly get more distant and exotic than the moon. Hams have been making contacts with other Earth-based stations by bouncing radio signals off the moon (EME) for many years. But with the advent of weak-signal digital modes like JT65 it no longer takes expensive equipment, gigantic antennas and powerful amplifiers to be successful. Gary Lauterbach, AD6FP, of the Stanford Amateur Radio Club has been doing EME for nearly 20 years. His presentation will include some history of EME as well as current activities; what bands, modes, and antennas are commonly used; and how to deal with tracking, frequency stability, doppler shift, and path losses. I'm expecting this will inspire some (or many) of us to try our hand at this exotic niche of ham radio. EME Presentation

Speaker: Alan Biocca, W6AKB
3D Printing

At our April meeting, Alan will explore the world of 3D printing. While not specific to ham radio, 3D printing certainly has a place in building components of a ham station. And since prices for 3D printers continue to come down rapidly, it's no longer only reserved for well-funded academic laboratories and big corporations. Come learn what can be done with 3D printers, not just in the realm of science fiction any longer.

Speaker: various
Digital Modes Workshop 1: FT8 Weak-Signal Mode

We'll explore digital modes with a high-level introduction to how digital modes work and what equipment one needs to run digital modes. Then we'll focus more specifically on the latest weak signal mode, FT8. When we're at the low ebb of a solar cycle or if you have very limited options for antennas then the weak signal modes may be just the thing for you. FT8 is amazing in its ability to complete a contact under the absolute worst propagation conditions, using low-gain antennas, and running just a few watts of power. It's no wonder the popularity of FT8 has soared in the few months it's been available. Future Digital Mode Workshops may explore some of the more established digital modes like PSK and RTTY and less frequently used modes like MFSK, Olivia, Domino, Contestia, etc.

Peter Hoffman W6DEI
Antenna Modeling Workshop, Part 2

This will be a continuation of the October workshop on antenna modeling with 4nec2. Bring your laptops with the software installed. We'll pick up where we left off, covering topics like using variables (symbols) to enable the powerful 4nec2 Optimizer. More than just modeling an antenna, the Optimizer can actually help you design an antenna. What's the optimal spacing of elements in your yagi to achieve the best F/B ratio, gain, closest match to 50 ohms? These are some of the things the 4nec2 Optimizer can help you determine. Time permitting we'll also cover how 4nec2 can help you design a matching network to achieve low SWR. We'll use an example antenna to illustrate the aforementioned topics, but feel free to bring your own antenna models - we can help you work on those as well.

Dan Werthimer, Chief Scientist at SETI presented about the Breakthrough Listen Initiative.
Search for Extraterrestrial Intelligence

The Breakthrough Listen Initiative, funded by the Breakthrough Prize Foundation, is the most powerful, comprehensive and intensive scientific search ever undertaken for signs of intelligent life beyond Earth. The project is using the Green Bank radio telescope in West Virginia and the Parkes Telescope in Australia to search for radio transmissions from advanced civilizations. In addition, the Automated Planet Finder at Lick Observatory is being used to search for optical laser transmissions from other technological civilizations. SETI Be sure to download the SETI screensaver amd join the largest supercomputer in the world: setiathome

VE Team
VE License Test Session


East Bay Amateur Radio Club @ East Bay MiniMaker Faire

Peter Hoffman W6DEI
Antenna Modeling with 4NEC2

Have you ever wanted to use, understand, build, optimize, model, or test an antenna but were afraid to ask? If so than the EBARC Antenna Workshop/Hackathon is for you. A lot of this stuff may appear hard but there is free software that makes it fun and easy. We will have a demonstration of some popular antennas scaled to 900 MHz that we developed for the Maker Faire. You will be introduced to antenna basics, designing and modeling/optimizing with 4NEC2 software. To get the most out of the event please bring a laptop with 4NEC2 installed. Download 4NEC2 (

Enjoy and Analyze the "Great American Solar Eclipse"

HAMSCI: Ham Radio Science Citizen Investigation is organizing a crowd-sourced data collection project to help analyze the effects of the August 21st 2017 solar eclipse on ionospheric radio wave propagation. Ionospheric paths will change throughout the day as the moon passes across the sun and different portions of the Earth’s ionosphere are affected. The Reverse Beacon Network (RBN) and similar systems like PSK Reporter and WSPRnet will be used to collect data about open propagation paths and signal-to-noise ratios. The concurrent Solar QSO Party (kind of a contest, but not exactly) will help encourage as many radio contacts as possible that day. Logs from the “contest” will be uploaded along with the RBN data. All of the collected data will be made available to academic institutes for analysis so we’re hoping to collect as much data as possible. There are many ways hams can participate in this data collection: being a node on the RBN using a standard receiver or an SDR, working the contest, etc. Check out Page 82 of the February ARRL's QST magazine for more information.

Ken Fowler KO6NO
FCC General Class License Class Begins

Rich Holoch
u.RAT - the Universal Remote Antenna Tuner

f you've seen any of RIch's presentations for EBARC before you'll know he's an avid DXer, covering topics like "Wire Antennas for DXing," "Low Band Antennas," "How I Made the DXCC Honor Roll," etc. With no new DX entities to work, and very few sunspots, Rich has still been keeping busy in amateur radio. This month's presentation will be on a universal remote antenna tuner that Rich dreamed up. He uses an Elecraft KPOD controller in an unorthodox way, pairing it with a RaspberryPi micro controller to run stepper motors that tune a remote analog antenna match (tuner). Very creative, out-of-the-box thinking and a lot of computer programming to make this thing work. He'll be doing a presentation on this topic at Pacificon in October, but you can see it here first - right in your own backyard. So please plan to attend the August meeting.

Field Day Follow Up

This year we built a bunch of new antennas for field day. The 40 m 2 element Delta loop was a real success, the 80 m sloper worked okay, and the 80 m kite antenna was hella fun. We can talk about the computer design of the antennas and how they were constructed. A lot of research went into a kite design for our purpose. The kite antenna remained aloft for most of FD without attention. We'll find out what our total score was and kick around ideas for next year.

VE Team
VE Test Session

Field Day!

Please join the East Bay Amateur Radio Club for Field Day 2017. The weather forecast for Saturday is looking good and we have a great place to operate. We will start operating at 10 AM June 24 and continue for 24 hours. If you'd like to help us setup on Friday we'll be getting started before noon. We are in the Cesar Chavez park off Spinnaker Way at the Berkeley Marina: GPS coordinates 37.872166, -122.320638 Look for the large antennas. This year NALCO http://nalco-ares-rac... (­ will be joining us. They are very much involved in ham emergency services in Berkeley and Albany. In addition to using UHF/VHF and APRS they have deployed an AREDN (amatuer radio emergeny data network) operating at 2.4 GH

Prepare for the "Great American Solar Eclipse"

Alan Bowker
Satellite operations

Alan Bowker, WA6DNR, will speak to us about AMSAT (amateur radio on satellites). Alan has been a featured speaker at AMSAT Symposiums and can give us the latest on what the AMSAT group is up to and how best to make some radio contacts using the satellites currently in orbit. (Link to presentation)

Jim Latham AF6AQ
ARRL Update

ARRL Eastbay Section Manager Jim Latham, AF6AQ, will give the club an update on current ARRL activities in the Eastbay and Nationally. Bring your questions for Jim. We had a successful high altitude balloon flight 3/18 and we will have a short debrief on the highlights and have some things to show off.

High Altitude Balloon Launch: HENRY-1

We are sending a high altitude balloon to the edge of space and hopefully getting it back. It is a latex weather balloon filled with helium and will be carrying a number of radios and scientific equipment. This flight is sponsored in conjunction with W6BB UC Berkeley's ARC. You can follow us in realtime during the flight here:!call=a%2FW6BB-11&timerange=3600&tail=3600 We are flying a device to sample the air at high altitude to study the bacteria found there. A Geiger counter will record the position of strikes to study cosmic rays. There is a APRS beacon on 144.390 with call sign W6BB-11 and a VHF/UHF cross band repeater We will record video with a GoPro looking sideways and both an up and down looking cameras.